package api import ( "context" "fmt" "net/http" "os" "time" "github.com/DataDog/datadog-go/statsd" "github.com/gorilla/mux" "github.com/jackc/pgx/v4/pgxpool" "github.com/sideshow/apns2/token" "github.com/sirupsen/logrus" "github.com/christianselig/apollo-backend/internal/domain" "github.com/christianselig/apollo-backend/internal/reddit" "github.com/christianselig/apollo-backend/internal/repository" ) type api struct { logger *logrus.Logger statsd *statsd.Client reddit *reddit.Client apns *token.Token accountRepo domain.AccountRepository deviceRepo domain.DeviceRepository subredditRepo domain.SubredditRepository watcherRepo domain.WatcherRepository userRepo domain.UserRepository } func NewAPI(ctx context.Context, logger *logrus.Logger, statsd *statsd.Client, pool *pgxpool.Pool) *api { reddit := reddit.NewClient( os.Getenv("REDDIT_CLIENT_ID"), os.Getenv("REDDIT_CLIENT_SECRET"), statsd, 16, ) var apns *token.Token { authKey, err := token.AuthKeyFromFile(os.Getenv("APPLE_KEY_PATH")) if err != nil { panic(err) } apns = &token.Token{ AuthKey: authKey, KeyID: os.Getenv("APPLE_KEY_ID"), TeamID: os.Getenv("APPLE_TEAM_ID"), } } accountRepo := repository.NewPostgresAccount(pool) deviceRepo := repository.NewPostgresDevice(pool) subredditRepo := repository.NewPostgresSubreddit(pool) watcherRepo := repository.NewPostgresWatcher(pool) userRepo := repository.NewPostgresUser(pool) return &api{ logger: logger, statsd: statsd, reddit: reddit, apns: apns, accountRepo: accountRepo, deviceRepo: deviceRepo, subredditRepo: subredditRepo, watcherRepo: watcherRepo, userRepo: userRepo, } } func (a *api) Server(port int) *http.Server { return &http.Server{ Addr: fmt.Sprintf(":%d", port), Handler: a.Routes(), } } func (a *api) Routes() *mux.Router { r := mux.NewRouter() r.HandleFunc("/v1/health", a.healthCheckHandler).Methods("GET") r.HandleFunc("/v1/device", a.upsertDeviceHandler).Methods("POST") r.HandleFunc("/v1/device/{apns}", a.deleteDeviceHandler).Methods("DELETE") r.HandleFunc("/v1/device/{apns}/test", a.testDeviceHandler).Methods("POST") r.HandleFunc("/v1/device/{apns}/account", a.upsertAccountHandler).Methods("POST") r.HandleFunc("/v1/device/{apns}/accounts", a.upsertAccountsHandler).Methods("POST") r.HandleFunc("/v1/device/{apns}/account/{redditID}", a.disassociateAccountHandler).Methods("DELETE") r.HandleFunc("/v1/device/{apns}/account/{redditID}/watcher", a.createWatcherHandler).Methods("POST") r.HandleFunc("/v1/device/{apns}/account/{redditID}/watchers", a.listWatchersHandler).Methods("GET") r.HandleFunc("/v1/device/{apns}/account/{redditID}/watcher/{watcherID}", a.deleteWatcherHandler).Methods("DELETE") r.HandleFunc("/v1/receipt", a.checkReceiptHandler).Methods("POST") r.HandleFunc("/v1/receipt/{apns}", a.checkReceiptHandler).Methods("POST") r.Use(a.loggingMiddleware) return r } type LoggingResponseWriter struct { w http.ResponseWriter statusCode int bytes int } func (lrw *LoggingResponseWriter) Header() http.Header { return lrw.w.Header() } func (lrw *LoggingResponseWriter) Write(bb []byte) (int, error) { wb, err := lrw.w.Write(bb) lrw.bytes += wb return wb, err } func (lrw *LoggingResponseWriter) WriteHeader(statusCode int) { lrw.w.WriteHeader(statusCode) lrw.statusCode = statusCode } func (a *api) loggingMiddleware(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { // Skip logging health checks if r.RequestURI == "/v1/health" { next.ServeHTTP(w, r) return } start := time.Now() lrw := &LoggingResponseWriter{w: w} // Do stuff here // Call the next handler, which can be another middleware in the chain, or the final handler. next.ServeHTTP(lrw, r) logEntry := a.logger.WithFields(logrus.Fields{ "duration": time.Since(start).Milliseconds(), "method": r.Method, "remote#addr": r.RemoteAddr, "response#bytes": lrw.bytes, "status": lrw.statusCode, "uri": r.RequestURI, }) if lrw.statusCode == 200 { logEntry.Info() } else { err := lrw.Header().Get("X-Apollo-Error") logEntry.Error(err) } }) }